Governor mechanism for engines.



No. 653,478. Patented luly l0, I900. C. G. Y. KING.

GOVERNOR MECHANISM FOR ENGINES.

(Application filed Dec. 30, 1899.) (No Model.) 2 sheets-sheet I.

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No. 653,478. Patented July [0, I900.

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GOV ERNOR MECHANISM FDR-ENGINES.

(Application filed Dec. 80, 1899.) (No Model.) 2 Sheets-Sheet 2.

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NITED STATES PATENT FFIG.

CHARLES G. Y. KING, OF CHICAGO, ILLINOIS.

GOVERNOR MECHANISM FOR ENGINES.

SPECIFICATION forming part of Letters Patent No. 653,478, dated July 10, 1900.

Application filed December 30, 1899. Serial No. 742,137. (No model.) A

To all whom it may concern:

Be it known that 1, CHARLES G. Y. KING, a resident of Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Governor Mechanism for Engines, of which the following is a full, clear, and exact description.

In the operation of engines, particularly such as are designed for the driving of dynamos, it is very desirable that provision be made whereby the operation of the governor mechanism of the engine can be 'pla'ced'under the control of the attendant at the switchboard from which the electric current is distributed, so that the speed of the engine may be varied from time to time as desired without the necessity'of the attendant leaving his position at the switchboard or requiring the services of the engineer. My presentinvention contemplatesimproved means whereby this desired result can be attained; but while my invention will be found particularly advantageous in connection with engines designed for the driving. of dynamos it may obviously be used in a variety of other situations in which it may be desired to regulate the speed of the engine from a more or less remote point.

The invention consists in the features of improvement hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the claims at the end of this specification;

Figure 1 is a side View showing governor mechanism having my invention applied thereto. Fig. 2 is an end view looking in the direction of the arrow, Fig. 1. Fig. 3 is a detail view, upon an enlarged scale, in central vertical section, on line 3 3 of Fig. 2. Fig. 4 is a detail end view of the parts shown in Fig. 3. Fig. 5 is an enlarged detail view, partly in section and partly in elevation, showing the manner of supporting the motor from the lever-arm of the governor. Fig. 6 is a view in side elevation, showing a modified apparatus embodying features ofmy invention. Fig. 7 is an enlargeddetail plan View of the outer end of the motor-shaft with the Worm-wheel in gear therewith, the cover of the casing of such wheel beingremoved. Fig. 8 is a detail view, in vertical section, on line 8 8 of Fig. 7.

In the accompanying drawings I have shown my invention as applied to the familiar form of ball-governor for engines known as the Porter Allen governor. The construction of this type of governor is so familiar with those conversant with engine governors that the details thereof need not be particu larly described. It is sufficient to observe that the weighted lever-arm A is fulcrumed, as at a, to a fixed bracket b, one end of this lever-arm being connected by a suitable rod a with the valve controlling mechanism of the engine. The lever-arm A is connected in the usual manner to the vertically-movable collar O of the govern0r,with which collar are connected the ball-links D in the usual manner. In prior constructions of this class of governors it has been the usual practiceto mount a suitable weight upon the'free end of the lever-arm A and to provide this weight with suitable means whereby its position might be manually shifted in order to regulate the operation of the governor; but this necessitated the attendance of the engineer at the governor. By my present invention the free arm of the governor-lever A has mounted thereon an electric motor E, from which suitable electric wires 6, e, and 6 lead to the switchboard of the dynamo or to any other convenient point from which it may be desired to regulate the operation of the governor. The motor E is provided with arms or brackets 0 to which is bolted, as at 6 a hanger-plate F, through which the lever-arm A of the governor passes. By reference more particularly to Figs. 3 and 4 it will be seen that the brackets e are recessed to receive the heads of the bolts 6 The opening f of the hanger-plate F is somewhat larger in vertical direction than the Width of the lever-arm A, (see Fig. 5,) and in the upper part of this opening are journaled the friction-rolls f, that will bear upon the upper edge of the lever-arm. In the lower part of the opening f of the hanger-plate F are placed the plate-springs F, the outer ends of which are fastened, as at f ,'to the ends of the hanger-plate F,while the free inner ends of these springs bear against the lower edge of the lever-arm A. My purpose in employing the friction-rolls f is to insure the easy movement of the motor E along the lever A, and the function of the springs F is to steady the motor under the vibrations to which the governor is subjected.

To one side of the hanger-plate F is bolted the upper end of a hanger-arm G. The lower end of this arm G is bifurcated, as clearly shown in Figs. 1 and 3 of the drawings, and in this lower end is journaled an interiorlythreaded sleeve G, having keyed thereto or suitably connected therewith a worm-wheel G Through the threaded sleeve F passes a correspondingly-screw-threaded rod H. The inner end of this rod is journaled in the lower end of an arm or bracket J, the upper end of which is fastened to the lever-arm A, and the outer end of the screw-rod H passes through a similar arm or bracket J, that depends from the outer end of the lever-arm A. A handwheel H is mounted upon the outer end of the screw-rod H in order to permit this rod to be turned manually when desired. Normally, however, the rod H is fixed against revolution by means of a pin it, that passes through a hole in the hubj of the bracket J and through a corresponding hole in the shaft H. When the rod H is to be turned manually, the pin it will be withdrawn; but when the motor E, which serves as the weight for the governor-lever, is to be shifted by passage of current therethrough the rod H will be locked against revolution.

The motor E may be of any suitable construction. The shaft E of this motor is provided at its outer end with a worm E, that meshes with a worm-wheel G From the foregoing description it will be seen that when the attendant at the switchboard, for example, desires to shift the motor E upon the lever-arm A he will cause passage of current through the motor in such manner as to revolve its shaft E in either forward or backward direction, according as the motor is to be moved in or out upon the governorarm A. As the shaft E and the worm E are revolved like revolution will be imparted to the worm-wheel G and threaded sleeve G, thereby causing the sleeve G to move along the threaded rod H and consequently to shift the motor E in forward or backward direction along the lever-arm A. It will be understood that normally the motor E will be out of circuit, being thrown into circuit only at such times as the switchboard-attendant desires to modify the speed of the engine. If it is desired to shift the motor E by hand, the engineer will remove the pin it and then turn the hand-wheel H in the usual manner.

In the form of the invention illustrated in Figs. 6 to 8 of the drawings the governor proper is the same as that hereinbefore described. In this form of the invention, however, the weight E is carried upon the same end of the lever-arm A to which is attached the rod a that is connected. with the valveoperating mechanism. As shown, the upper end of the rod a is pivotally united to a bellcrank lever M, suspended from an overhead support N, the opposite arm of the lever M having attached thereto a rod m, that leads to the valve-controlling mechanism of the engine. To the lever A in this form of my invention is connected one end of a coil-spring P, the opposite end of this spring being attached to the lower end of a screw-threaded rod R, that leads upwardly (see Figs. 6 and 8) through an interiorly-screw-threaded sleeve S, that has keyed thereto a worm-wheel S. The worm-wheel S is shown as inclosed within a casing T, that is sustained upon a suitable bracket 25, and through this casing passes the outer end of the shaft E of the electric motor E. The shaft E is provided with a worm E that engages the teeth of the worm-wheel S, so that revolution of the motor-shaft E shall impart corresponding revolution to the worm-wheel S.

From the foregoing description it will be seen that when the attendant at the switchboard or other remote point desires .to regulate the speed of the engine he will cause passage of current through the electric motor E. The revolution of the shaft E will, through the medium of the worm E worm-wheel S, and threaded sleeve S, cause the threaded rod R to be raised or lowered, and this movement of the rod R will correspondingly increase or diminish the tension of the spring P, and so modify the resistance offered by the weight E to the movement of the lever-arm A of the governor. In other words, the vertical movement of the threaded rod R has the same effect upon the governor-lever A as does the horizontal movement of the weight E in the form of myinvention hereinbefore described.

It is manifest that the precise details of construction above set forth may be varied without departure from the spirit of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a governor mechanism for engines, a wheel threaded upon a screw-rod, means for holding one of said parts against longitudinal movement whereby the rotation of the wheel will cause the other of said parts to move longitudinally in one or the other direction, means whereby the to-and-fro motion of the moving part is caused to vary the resistance of the governor mechanism, means for rotating said wheel comprising an electric motor and gearing between the shaft of said motor and said wheel.

2. The combination with the lever-arm of a governor, of an electric motor mounted to slide in the direction of the length of said arm and suitable gearing whereby the revolution of the motor-shaft shall effect its back-andforth movement.

3. The combination with the lever-arm of a governor, of an electric motor movably mounted upon said arm and suitable gearing whereby the revolution of the motor shaft shall efiect its backandforth movement upon the lever-arm.

6. The combination with the lever-arm of a governor, of an electric motor movably mounted upon said arm, a threaded rod connected with said arm, suitable gearing between said threaded rod and the motor-shaft, and means whereby said shaft may be held rigid or allowed to revolve, and means at the end of said threaded rod whereby it may be manually operated.

CHARLES G. Y. KING.

Witnesses FRED GERLAC, ALBERTA ADAMICK. 

